Plasmon‐Coupled Gold Nanospheres for Two‐Photon Imaging and Photoantibacterial Activity

Positively charged Au nanospheres are found to form aggregates on the bacterial surface, resulting in significantly enhanced two-photon photoluminescence (TPPL). The enhanced TPPL is successfully utilized to image bacterial cells in the NIR region. In addition, these Au nanospheres effectively eradicate the bacterial cells by laser pulses in the same NIR region due to the photothermal effect. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.